first attempt at django associations; amazon

amazon/amazon/asgi.py

@@ -0,0 +1,16 @@
+"""
+ASGI config for amazon project.
+
+It exposes the ASGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/3.2/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'amazon.settings')
+
+application = get_asgi_application()

amazon/amazon/settings.py

@@ -0,0 +1,126 @@
+"""
+Django settings for amazon project.
+
+Generated by 'django-admin startproject' using Django 3.2.4.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/3.2/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/3.2/ref/settings/
+"""
+
+from pathlib import Path
+
+# Build paths inside the project like this: BASE_DIR / 'subdir'.
+BASE_DIR = Path(__file__).resolve().parent.parent
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/3.2/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = 'django-insecure-aa*$mi@usrf+9ha5j864&1f=f%nly*f1kfsdj-^nz&#9k-cu^l'
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = []
+
+
+# Application definition
+
+INSTALLED_APPS = [
+    'store',
+    'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+]
+
+MIDDLEWARE = [
+    'django.middleware.security.SecurityMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+]
+
+ROOT_URLCONF = 'amazon.urls'
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.template.context_processors.debug',
+                'django.template.context_processors.request',
+                'django.contrib.auth.context_processors.auth',
+                'django.contrib.messages.context_processors.messages',
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = 'amazon.wsgi.application'
+
+
+# Database
+# https://docs.djangoproject.com/en/3.2/ref/settings/#databases
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': BASE_DIR / 'db.sqlite3',
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/3.2/topics/i18n/
+
+LANGUAGE_CODE = 'en-us'
+
+TIME_ZONE = 'UTC'
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/3.2/howto/static-files/
+
+STATIC_URL = '/static/'
+
+# Default primary key field type
+# https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field
+
+DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

amazon/amazon/urls.py

@@ -0,0 +1,21 @@
+"""amazon URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/3.2/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  path('', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.urls import include, path
+    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
+"""
+from django.contrib import admin
+from django.urls import path
+
+urlpatterns = [
+    path('admin/', admin.site.urls),
+]

amazon/amazon/wsgi.py

@@ -0,0 +1,16 @@
+"""
+WSGI config for amazon project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/3.2/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'amazon.settings')
+
+application = get_wsgi_application()

amazon/manage.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+"""Django's command-line utility for administrative tasks."""
+import os
+import sys
+
+
+def main():
+    """Run administrative tasks."""
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'amazon.settings')
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        ) from exc
+    execute_from_command_line(sys.argv)
+
+
+if __name__ == '__main__':
+    main()

amazon/store/migrations/0001_initial.py

@@ -0,0 +1,40 @@
+# Generated by Django 3.2.4 on 2021-07-07 18:16
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Product',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Review',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='User',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Shop',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('owner', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='store.user')),
+            ],
+        ),
+    ]

amazon/store/migrations/0002_product_shop.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.2.4 on 2021-07-08 00:01
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('store', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='product',
+            name='shop',
+            field=models.ForeignKey(default=None, on_delete=django.db.models.deletion.CASCADE, related_name='products', to='store.shop'),
+            preserve_default=False,
+        ),
+    ]

amazon/store/migrations/0003_auto_20210708_0023.py

@@ -0,0 +1,26 @@
+# Generated by Django 3.2.4 on 2021-07-08 00:23
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('store', '0002_product_shop'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='review',
+            name='product',
+            field=models.ForeignKey(default=None, on_delete=django.db.models.deletion.CASCADE, related_name='reviews', to='store.product'),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='review',
+            name='user',
+            field=models.ForeignKey(default=None, on_delete=django.db.models.deletion.CASCADE, related_name='reviews', to='store.user'),
+            preserve_default=False,
+        ),
+    ]

amazon/store/migrations/0004_review_text.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.2.4 on 2021-07-08 01:13
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('store', '0003_auto_20210708_0023'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='review',
+            name='text',
+            field=models.TextField(default=None),
+            preserve_default=False,
+        ),
+    ]

amazon/store/models.py

@@ -1,3 +1,23 @@
 from django.db import models
 
 # Create your models here.
+class User(models.Model):
+    pass 
+
+
+class Shop(models.Model):
+    owner = models.ForeignKey(User, on_delete=models.CASCADE)
+
+class Product(models.Model):
+    shop = models.ForeignKey(Shop, on_delete=models.CASCADE, related_name='products')
+    product_reviews = models.ManyToManyField(User, through='Review')
+
+class Review(models.Model): # this is your join table!!!!!
+    # user is providing review
+    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='reviews')
+
+    # we are reviewing the product, itself
+    product = models.ForeignKey(Product, on_delete=models.CASCADE, related_name='reviews')
+
+    # can also add--
+    text = models.TextField()

amazon/store/tests.py

@@ -1,3 +1,32 @@
 from django.test import TestCase
+from .models import *
+import redgreenunittest as unittest
+
+class AssociationTestCase(TestCase):
+    def setUp(self):
+        self.shop_owner = User.objects.create()
+        self.shop = Shop.objects.create(owner=self.shop_owner)
+        self.product = Product.objects.create(shop=self.shop)
+        self.user = User.objects.create()
+        self.review = Review.objects.create(product=self.product, user=self.user)
+
+    def test_01_owner_of_shop(self):
+        """returns the owner of the shop"""
+        self.assertEqual(self.shop.owner, self.shop_owner)
+
+    def test_02_shop_products(self):
+        """returns the products for sale in the shop"""
+        self.assertEqual(list(self.shop.products.all()), [self.product])
+
+    def test_03_product_shop(self):
+        """returns the shop the product belongs to"""
+        self.assertEqual(self.product.shop, self.shop)
+
+    def test_04_product_reviews(self):
+        """returns the product's reviews"""
+        self.assertEqual(list(self.product.reviews.all()), [self.review])
+
+    def test_05_review_reviewer(self):
+        """returns the review's author"""
+        self.assertEqual(self.review.user, self.user)
 
-# Create your tests here.

amazon_old/store/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

amazon_old/store/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class StoreConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'store'

amazon_old/store/models.py

@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.

amazon_old/store/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

amazon_old/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.